The GRAND TETON NATURAL HISTORY ASSOCIATION

The Grand Teton Natural History Association assists the National Park Service in the development of a broad public understanding of the geology, plant and animal life, history, and related subjects pertaining to Grand Teton National Park. It aids in the development of museums and wayside exhibits, offers for sale publications on natural and human history, and cooperates with the Government in the interest of Grand Teton National Park.

Mail orders: For a publication list, write the Grand Teton Natural History Association, Moose, Wyoming 83012.

Creative Director:	Century III Advertising. Inc.
Designer:	Les Hays Studios, Inc.
Color Separations—Assembly—Plates:	Orent Graphic Arts, Inc.
Type:	Bodoni and Gothic
Printer:	Omaha Printing Co.
Printing:	Offset Lithography.
	Six Colors on Covers
	Two Colors on Body

GEOLOGIC MAP OF GRAND TETON NATIONAL PARK
[High-resolution Map]

EXPLANATION

CENOZOIC QUATERNARY Sand, gravel, and talus Includes glacial outwash and materials deposited by present streams Landslide deposits Moraine deposits of Pinedale glaciers Moraine deposits of Bull Lake and older glaciers TERTIARY Volcanic rocks Lava flows and volcanic ash Conglomerate, sandstone, shale, claystone, marl, and pumice Deposited on land or in shallow lakes MESOZOIC Conglomerate, sandstone, shale, and coal Deposited on land Shale, sandstone, and limestone Mostly deposited in shallow seas PALEOZOIC Limestone, shale, and sandstone Deposited in shallow seas PRECAMBRIAN Diabase dikes Granite, gneiss, and schist Fault Dashed where approximately located; dotted where concealed beneath unfaulted younger deposits. U is on the side that moved up; D, on the side that moved down Geologic contact

View southwest from Lake Solitude toward the Grand Teton (right), Mt. Owen, and Mt. Teewinot. Wyoming Travel Commission photo by J. R. Simon.

Grand Teton, Mt. Owen, and Mt. Teewinot from Jenny Lake Flat. National Park Service photo by W. E. Dilley.